Registering system



H4, 19. MAY ET AL REGISTERING SYSTEM Fil ed May 51, 1940 7 Sheets- Sheet1 ATTORNEY L A n Y A M F H March 14, 19.

M E m 5 Y S G N I R E T S I G E R 7 Sheets-Sheet 2 O 4 9 l 1 70 y a M de 1 1 F MAY BUSH T H C E N K C. 5.

- :{NVENTORS ATTORN EY TO FIGJ H. F. MAY ETAL I 2,343,989

REGISTERING SYSTEM Filed May 31, 1940 '7 Sheets-Sheet 3 INVENTORS H. F.M

G.L.B H

E. FR|SC NECHT ATTORNEY v f- Marsh 14, 1944. MAY ETAL 2,343,98Q

REGISTERING SYSTEM Filed May 31, 1940 '7 Shee tsSheet 4IQHIIIIIIIIIQIIIMI I 1 I l 1 l l l NECHT INVENTORS H. F. M AY (5.1..BUSH BY E.FR|SC ATTORNEY mu mul 7 sheets sheet 5 H. F. MAY ETREGISTERING SYSTEM Filed May 51 FIG.8

arch 14, 1944.,

T w E INVENTORS H. F. M

G. L. BU

E. FRISCHKN ATTORNEY 7 Sheets-Sheet 7" H. F. MAY ETAL REGISTERING SYSTEMFiled May 31, 1940 arch M, 1944.

l O\O O O I |o u. u 0 0 N (D I) n NW1! classes.

?atenteii ar. 14, 1944 REGISTERING SYSTEM Harold F. May, Valley Stream,George L. Bush, Flushing, and Ernest Frischknecht, Jackson Heights, N.Y., assignors to The Teleregister Corporation, New York, N. Y., acorporation of Delaware Application May 31, 1940, Serial No. 338,070

Claims. (Cl. 235-92) This invention relates to a registering system andmore particularly to a system for registering and recording informationsuch as the amount of vehicular trafiic along a highway at a tollstation,

the items of production in a manufacturing plant, the number of bets atsports events such as racing events and the-like, wherein the totalnumber of items of operations of different classes is automaticallytotaled, posted and recorded in tabularform.

An object of this invention is to provide an improved system of thecharacter described, wherein messages originating at a main station aretransmitted selectively to a plurality of receiving devices and postedby the receiving devices in accordance with the combined values of themessages received and the messages previously posted by the devices, thereceiving devices including means for recording the total values postedby the devices at predetermined intervals of time.

In general this system provides an arrangement whereby an operator at a.station, for example, a toll station, depresses the keys of his keysetthereby eifecting registration of the total amount of vehicular trafiiccontrolled by his station, the totalizing operation of the system beingaccomplished automatically by the keyset operation. The system alsoprovides a printed record of the total amount of vehicular traflic ofdifferent classes at predetermined intervals of time, the printingoperation being controlled by circuit closing mechanism operable atperiodic intervals of time or by the operator as desired. When employedas a registering system at a sports event as, for example, a racingevent wherein bets are placed on the various contestants in the race,the keyset may be stationed at the betting office and operated as eachbet is received, thereby causing a group of associated registers ofdifferent classes to operate and display the total bets placed in regardto each of the The total amount of betting displayed on each of theregisters is recorded at predetermined intervals and means are providedfor preventing a change in the settings of the registers after the racehas started. When applied to the production of a manufacturing plant,for example, the system enables an operator to register the differentitems of production in accordance with the completion of the diiferentstages in the process of manufacture of the items, and of the items ascompleted, whereby total amounts are registered according to differentclassifications and a printed record is made of these amounts atpredetermined intervals of time.

Another of the objects of this invention is the provision of improvedmeans for transmitting signals representative of the value of a numberand causing this number to be combined with the number previously postedby a selected device, and the sum of these numbers to be automaticallyposted by the device.

A further object resides in the arrangement of simplified apparatus andcircuits therefor for causing a number set up at a transmitting stationto be combined with a number posted by an indicating device and thecombined number to be posted by the indicating device by impulsescontrolled from the transmitting station.

A further object of the invention is the provision of a system forautomatically adding numerical values set up at a transmitting stationand posting the results of such addition on a selected indicating deviceand sending a signal back to the transmitting station as each sumisposted.

A still further object of the invention resides in the provision of aplurality of devices for recording v'alues of items, classifiedaccording to one of the characteristics of the item, at differentperiodical intervals and means operable at will for changing theperiodicity of the information recorded by any of the recording devices.

Still another object is a system of the chartion of one illustrativeembodiment of the invention shown in the accompanying drawings, theinvention resides in the novel system, elements of construction, devicesand combination of parts in cooperative relationship, as hereinaftermore particularly pointed out in the claims.

in the drawings: Fig. 1 shows, in diagrammatic form, certaintransmitting and printer control apparatus suit able for use with thesystem,

Fig. 2 shows, in diagrammatic form, the postingand recording devices andcontrol apparatus therefor adapted to be controlled by the apparatus ofFig. 1,

Fin. 3 is a view, partly broken away, of'the keyset 01' Fig. 1.

Fig. 4 is a view in elevation, partly broken away, of the keyset 01 Fig.3 taken along the line H of Fig. 3.

Fig. 5 is a front view of one of the recorder devices of Fig. 2.

Fig. 6 is a view in section taken along the line H of Fig. 5, i

Fig. 'l is a view in section taken along the line 1-1 of Fig. 6,

P18. 8 is a view in section taken along the line 9-. cl. Fig. 6.

Fig. 9 is a view partly in section taken along the line 9-9 of Fig. 8.and

Fig. 10 is a view, in diagrammatic form, or the entire system.

The operation of the system will best be understood by reference toFigs. 1 and 2 of the drawings on which is shown, in diagrammatic form,the entire system. Referring specifically to Fig. 1, there is shownthereon a group of selection keys and associated signal lamps designatedA to J for selecting for operation the register recorder units A to J ofFig. 2. The group of digit keys, Fig. 1, designated I to 9 is employedto cause the selected register of Fig. 2 to post a number of higherdenominational value than the number previously posted by the device byan amount corresponding to the value of the number represented by theoperated digit key. The key designated ADD,is employed to set thereceiving apparatus 01 Fig. 2 into operation to add the numberrepresented by the operated digit key to the number posted by theindicator register selected by the operated selection key and post thearithmetical sum or these numbers on the selected register. The row 01'keys designated PA to PJ is employed for actuating the print magnets PMAto PMJ of the recorder units of Fig. 2 thereby selectively printing intabular form the information posted b the recorders. The key designatedW0 is employed to wipe out the settings of the indicator registers andrestore them to their normal or zero positions. The key designated ER,when depressed, causes the operation 01 the release magnet RLS of Fig. 2thereb restoring the indicator control equipment of Fig. 2 to its normalposition. The selection keys and digit keys of the keyset remain intheir operated positions until released by the key release magnet KR.

There is also shown on Fig. 1 a clock mechanism I connected by a shaft 2to a gear box 3 for actuating the cams 4, 5 and 6 by means of the shaftsI, 8 and 9 respectively at different rates of speed, according to thegear ratios employed within the gear box, the cam A, for example, makingone revolution an hour, the cam 5 two revolutions and the cam 8 fourrevolutions an hour. These cams are employed to control the operation ofrelays PI, P2 and P3 thereby controlling the operation of relays SOI,S02 and S03 respectively in accordance with the released condition ofthe indicator control apparatus of Fig. 2 to cause the indicators ofFig. 2 to record their settings periodically at predetermined intervalsof time. There is also shown a plug and jack arrangement comprising thejack strip 9 and a plurality oi plugs and flexible conductors connectedto the terminal strip II for changing at will the periodicity ofoperation of the printing mechanism of each of the recording devices.

Referring now to Fig. 2 there is shown thereon an impulse machine IMhaving a plurality of contact closing eiemenisactuated by the cams A toF for generating control impulses and indicator actuating impulses. Astart relay SR is provided with means for applying battery to thecontacts or cams Aand B when a start signal has been received, therebyactuating the counting chain comprising relays C, P, PP, and relays CIto Cl. A release relay RLSis provided for restoring the controlequipment of Fig. 2 to normal when the counting chain has completed itscycle of operation. A pulse repeating relay REP has one end of itswinding connected to ground and the other end oi its winding connectedto the circuit closing elements or cam B and is employed-to repeat theindicator operating impulses generated by cam B of the impulse machine.A wipe out relay designated WOI i rovided for controlling certaincircuits whereby the indicators are restored to their normal or zeropositions.

A plurality or register indicators each comprising five indicator unitsdesignated 'I'I'H, TH. H, T and U is employed for displaying andrecording the digits of the numbers posted by the indicators. Eachindicator mechanism comprises a plurality 01 indicating drums havingtypewheels associated therewith and a printing mechanism including aprint magnet, such as the print magnet PMA for the indicator A, forprinting the numerical values or the numbers posted by the indicator andset up on the type wheels. Each indicator register has a selection relayassociated therewith controlled by the selection keys of the keysetsuch, for example, as the relay A associated with the indicator A. forselecting the indicator for operation to a new setting.

The indicator may be of any well known construction suitable for thepurpose, such, for example, as the type disclosed in Patent No.2,189,581, granted February 6, 1940, to Raymond M. Hicks and Merton L.Haselton for Indicating device, or an indicator of the type disclosed inpatent to M. L. Haselton, No. 2,049,499, granted August 4, 1936, may beemployed with the system of the present invention. Each of theindicators comprises a rotatable drum settable to eleven positions fordisplaying the indicia 0, 1 to 9 and having a blank positionintermediate the digits 9 and 0. The indicator includes a switchingmechanism operable as the drum moves from position 9 to the blankposition to connect the winding of the indicator operating magnet to afirst contact closing element and switch the end of the winding of theoperating magnet to a second contact closing element as the indicatordrum is advanced from the blank position to position 0. The electricalconnection to the various switching elements and the operating coils ofthe indicators are shown on Fig. 2.

Now let it be assumed, by way of example, that the register indicator Ahas the number 15853 set up thereon and the operator desires to add thedigit 1 to this number. The manner in which this is accomplished willnow be described.

The operator depresses the selection key A, digit key I and key ADD ofhis keyset. Keys A and I, it will be recalled, remain in their operatedposition until released by the key release magnet KR. Key ADD, however,does not lock but releases when the operating pressure has been removedtherefrom by the operator. The operation of key A applies ground batteryby way of conductor I of cable I2 to the winding of the relay A andthence to ground, thereby causing relay A to operate and select theregister indicator A for operation.

assaoao With the switch Iliin closed position, the operation 01. key ADDcloses a circuit from ground at break contact and armature I3 of relay$03 from whence the circuit is continued by way of break contacts andarmatures of relays S02, SOI, PI, P2 and P3, conductor I4, contacts I5of key ADD, conductor I6, winding of start relay SR and thence tobattery, and ground, thereby causing relay SR to operate and lock by wayof its make contact and armature I1, conductor I8, break contact andarmature I9 of relay RLS to ground.

The operation of relay SR at its armature 2| and make contact thereofapplies battery by way of conductor 22, break contact and armature 23 ofrelay RLS and conductor 24 to the contacts associated with cams A and Bof the impulse machine. When cam A closes its contact, battery isapplied by way of conductor 25, armature 26 and break contact of relayP, winding I of relay C and thence to ground atthe break contact andarmature 21 of relay P, thereby causing relay C to operate and lock byway of its armature 28 and make contact to ground. The

operation of relay C at its armature 29 and make contact thereof appliesbattery to one end of winding I of relay P. Relay P, however, does notoperate as battery is applied by way of armature 2| and make contact ofrelay SR, and conductor 22 to the other end of the winding I of relay P.When the impulse contacts of cam A open, battery is removed fromconductor 25, and ground at armature 28 of relay C is extended by way ofwinding I of relay C and armature 29 and make contact thereof, winding Iof relay P and thence to battery on conductor 22 thereby causing relay Pto operate in series with relay C. The contacts associated with cam B ofthe impulse machine are closed immediately following the operation ofthe contacts of cam A. thereby applying battery to the repeating relayREP and causing it to operate each time the B contacts are in closedposition.

The operation of relay P at its armature 21 applies ground by way of itsmake contact, armature 3| and break contact of relay CI, winding ofrelay PP and thence to battery, thereby causing relay PP to operate andat its armature 32 and make contact thereof apply battery to conductor33 extending to the armatures 34 of relays CI to C9 and to armatures 96,91 and 98 of relay WOI.

When cam A causes its contacts to be closed during the second revolutionof the cam, battery is applied by way of conductor 25, armature 26 andmake contact of relay P to the winding 2 of relay C from whence thecircuit is continued by way of armature 28 and make contact of relay Cto ground thereby setting up a flux within the core of the magnet ofrelay C in opposition to the flux set up by the operating winding Ithereof and causing relay C to release. Relay P, however, remainsoperated by battery at armature 26 and make contact of relay P, causingthe energization of its locking winding 2.

The operation of relay REP in response to the second closure of cam Bcompletes a circuit from battery at armature 32 and make contact ofrelay PP, conductor 33, armature 34 and break contact of relay CI,conductor I of cable 35, contacts of digit key I, conductor 36,resistance 31, make contact and armature 38 of relay REP, conductor 1 ofcable 39, make contact and armature H of relay A, contacts 42 and 43 andwinding of indicator U and thence to ground, thereby causing indicator Uto operate. As contacts at cam B are disengaged, relay REP releases andat its armature 38 interrupts the circuit to the winding oi indicator Uthereby causing indicator U to release and advance the indicating drumand typewheel thereof to position 4.

When the contacts of cam A open, battery is removed from conductor 25and relay P releases. The release of relay P at its armature 21 removesground from one end of the winding of relay CI, thereby causing relay CIto operate in series with the winding of relay PP over the followingcircuit: battery, winding of relay PP, winding of relay CI, make contactand armature 44 of relay PP, conductor 45, armature 46 and break contactof relay RLS and thence to ground. The operation of relay CI at itsarmature 34 interrupts the operating circuit for the indicator U therebycausing the indicator U to remain set in position to display and printthe digit 4 and be unresponsive to additional operations of relay REPduring subsequent revolutions of the cam B.

The closure of cam A during the next succeeding revolution of the camapplies battery by way of conductor 25, armature 26 and break contact ofrelay P, winding I of relay C, break contact and armature 21 of relay Pto ground, thereby causing relay 0 to operate. When the contacts of camA open battery is removed from conductor 25 thereby causing relay P tooperate in series with relay C. The operation of relay P at its armature21 and make contact thereof applies ground by way of armature 3| andmake contact of relay Cl, armature 41 and break contact of relay C3 tothe winding of relay C2, thereby causing relay C2 to operate and at itsarmature 34 remove battery from conductor 2 of cable 35 extending to thecontacts of the digit key 2. Relay C2 locks by way of its make contactand armature 48, conductor 45, armature 46 and break contact of relayRLS to ground.

Relay C3 does not operate at this time for the reason that ground isapplied to both ends of its winding by armature 21 of relay P andarmature 46 of relay RLS respectively.

When the contacts of cam A close again during the fourth revolution ofthe impulse machine, battery is applied by way of conductor 25, armature26 and make contact of relay P to winding 2 of relay C, thereby causingrelay C to release, relay P remaining operated by current flowingthrough its winding 2. When cam contacts A open, battery is removed fromarmature 26 of relay P, thereby interrupting the flow of current throughits winding 2 and causing relay P to release. The release of relay Premoves ground from armature 41 of relay C3 thereby causing relay C3 tooperate in series with relay C2 to ground at armature 46 of relay RLS.

In a similar manner relays C and P are cause to operate and releasesuccessively during the fifth, sixth, seventh, eighth, ninth and tenthrevolutions of the impulse machine thereby operating the relays C4 to C9in succession, all of the relays PP and CI to C9 locking to ground atarmature 46 and'break contact of relay RLS. The operation of relay REPduring these revolutions of the cam B is without eifect for the reasonthat the circuits including armature 34 and break contacts of theserelays are open at the contacts of the associated digit keys of thekeyset.

The closure of cam A during the eleventh revolution of the impulsemachine causes relay C to operate and close a circuit to winding I ofrelay P. When cam A opens, relay P operates in series with relay C .andapplies ground by way of its armature 21 and make contact thereof,armature ii and make contact of relay Cl, armature 41 and make contactof relay C3, armature 49 and make contact of relay C5, armature 5i andmake contact of relay C1, armature 52 and make contact'of relay C9,conductor 53 and thence to the winding of relay RLS, causing relay RLSto operate and look by way of its armature 54 and make contact, armature55 and make contact of relay SR to ground. The operation of relay RLS atits armature 46 removes ground from conductor 45 thereby releasingrelays PP and CI to C9 The operation of relay RLS applies ground at itsarmature l9 and make contacts thereof to conductor 56 extending to thekey release magnet KR of the keyset and to the lamp RL thereby operatingthe key release magnet and causing the selection key A and the digit keyI of-the keyset to release The lamp RL thus provides a signal that thekeyset and associated equipment has been released.

The release of the selection key A removes battery from conductor I ofcable l2 thereby releasing relay A and extinguishing the lamp A. Asarmature IQ of relay RLS moves out of engagement with its break contact,ground is removed from conductor I8 thereby causing relay SR to release.When relay SR releases, ground is removed from its armature 55 therebyinterrupting the locking circuit of relay RLS. With relay SR in areleased condition and relay P released at the termination of thetwelfth impulse from cam A, relay RLS releases and removes ground fromconductor 56 thereby releasing the key release magnet KR andextinguishing the lamp RL. The number 15853 previously posted by theindicator recorder A has been combined with the digit 1 setup onthekeyset and the number 15854 is now posted by the indicator recorder A.

In a similar manner any digit may be combined with the number posted byany of the indicator recording devices by a single keyset operation andthe sum of the numbers is automatically posted by the selected device,the relay counting mechanism operating meanwhile to interrupt theimpulse operating circuit to the selected device when sufllcientimpulses have been transmitted thereto to step the indicator mechanismahead by an amount corresponding to the numerical value of the digit keyoperated.

Description of the carry-over feature As is well known in the art ofadding numbers, whenever the sum of two digits of the samedenominational value of the numbers to be added is greater than 9 itbecomes necessary to carry over the digit one and add it to the sum ofthe digits of higher denominational value disposed adjacent to the firstnamed two digits. The manner in which this is accomplished by the systemof the present invention will now be described.

The description of this feature of operation will best be understood byconsideration of a specific example. Assume, by way of example, that theindicator recorder A is set to display the numbe 39997 and the operatordesires to' add the digi 5 to to this number. The operator depresses thefollowing keys of his keyset: Selection key A, digit key 5 and key ADD.The operation of the selection key A causes relay A to operate therebyselecting the register recorder A and causing the lamp A of the keysetto be lighted. The operation of key ADD causes relay SR to operate andlock under control of relay RLS. With relay SR operated battery isapplied to the impulse con- The operation of relay PP applies battery byv way of armature 34 and break contact of relay C5, conductor 5 of cable35, contacts of .digit key 5, conductor 36, resistance 31 and thence tothe make contact associated with armature 38 of relay REP. With relay PPoperated, the first closure of impulse contacts 3 causes relay REP tooperate and bring its armature 38 into engagement with the make contactthereof, thereby applying battery to conductor 1 of cable 39 from whencethe circuit is continued by way of make contact and armature 4| of relayA, contacts 42 and 43 and winding of indicator U to ground therebyoperating indicator U. When cam B opens its contacts relay REP releasesand removes battery from conductor 1 of cable 39 thereby causing theindicator U to release and advance the drum and type-wheel thereof toposition 8. The release of relay P as a result of the removal of batteryfrom its winding 1 at cam A of the impulse machine causes relay CI tooperate and at its armature 34 remove battery from conductor l of cable35.

The closure of cam B during the net succeeding revolution of the impulsemachine causes relay REP to operate and apply battery to the relay Pwhen cam A opensits contacts. The

operation of relay P at its armature 21 causes relay C2 to operate andremove battery from conductor 2 of cable 35. When cam B again closes itscontacts, relay REP operates thereby causing the indicator U to hestepped ahead to its blank position and the switching element 43 thereofto be disengaged from contact 42 and brought into engagement withcontact 51.

' A circuit is now completed from battery at armature 58 and breakcontact of relay WOI, conductor 59, impulse contacts of cam C,resistance 6|, conductor 52, winding of indicator T'and switch contacts63 and 64 thereof, conductor 55, contacts 51 and 43 of indicator U,winding of indicator U to ground thereby causing indicators T and U tobe operated in series when cam C closes its contacts. The interruptionby the impulse cam C of the circuit just described causes the indicatorsT and U to be stepped ahead to positions blank and 0 respectively. Asindicator T moves into its position blank, switch contact 63 thereofmoves away from contact 64 and into engagement with contact 66. Asindicator U moves from its blank position to position 0 the switchelement 43 thereof is disengaged from contact 51 and brought intoengagement with contact 42.

When cam B again closes its contacts relay REP operates and appliesbattery to conductor 1 of cable 39, make contact and armature 4| ofrelay A, contacts 42 and 43 of indicator U,

winding of indicator U and thence to ground thereby energizing thewinding of indicator U and causing it to step ahead to position 1. Whencam D closes its contact, battery is applied by way of resistance 6!,conductor 62 and thence to the winding of indicator T, the circuit beingcontinued through contacts 63 and 88 of indicator T, armature 51 andmake contact oi relay A. conductor 5 of cable 39, armature 88 and breakcontact of relay WOI, conductor 89, conductor 4 of cable 39, armature IIand contact 12 of relay A, contacts 13 and 14 of indicator H and thenceto ground thereby operating indicators T and H in series. When impulsecontact D opens, battery is removed from the windings of indicators Tand H thereby causing indicator T to be stepped ahead to position inwhich position the switch element 83 is disengaged from contact 88 andbrought into engagement with contact 64 and indicator H to be advancedto its blank position with the switch element 14 thereof moved away fromcontact 13 and brought into engagement with contact 15.

While indicator U was being stepped ahead to its position 2 undercontrol of cam B, a circuit is closed from battery at the impulsecontacts of cam E by way of conductor 18, resistance 11, winding ofindicator TH and contacts l1 and I8 thereof, conductor 19, contacts 15and I4 of indicator H, winding of indicator H and thence to ground,thereby causing indicators TH and H to be stepped ahead to positionsblank and 0 respectively. As indicator TH moves into its blank position,switch element 11 thereof is moved away from contact 18 and brought intoengagement with contact 8|. As indicator H moves into its position 0,switch element 14 is moved out of engagement with contact 15 and intoengagement with contact 13.

When cam B again closes its contacts, relay REP operates therebyapplying battery to conductor I and causing indicator U to be steppedahead to its position 2, the circuit including, as will be recalled,operated contacts of digit key and break contact and armature 34 ofrelay C5. When this indicator operating impulse has been completed, camA opens its contacts thereby releasing relay P and causing relay C5 tooperate and at its armature 34 interrupt the operating circuit forindicator U thereby rendering indicator U unresponsive to additionaloperations of relay REP as cam B continues to apply battery impulses torelay REP.

As cam F closes its contacts, battery is applied to conductor 10,resistance TI and thence to the'winding of indicator TH and'switchcontacts 11 and 8| thereof, armature 82 and make contact of relay A,conductor 2 of cable 39, armature 83 and break contact of relay WOI,conductor I of cable 39, armature 84 and contact 85 of relay A, switchcontacts 86 and 81 of indicator TI'H and thence to g ound, therebycausing indicator TTH to be stepp d ahead from its position 3 toposition 4 and the indicator TH to be advanced from its position blankto position 0. As indicator TH moves into position 0 the associatedswitch element I1 is moved out of engagement with contact 8| and intoena ement with contact 18. The digit 5 has now been added to the number39997 previously posted by the indicator register A, the register A nowposting the new number 40002. It will be noted that, during theforegoing circuit operations, the indicator U receives impulses throughresistance 31 and a carry-over impulse on a circuit including resistance8| and the winding of indicator T in series with the winding ofindicator U. The employment of resistance elements 31 and iii provides acircuit arrangement whereby the winding of each indicator receivessubstantially the same strength of current flow irrespective of whetherthe indicator operating impulses are signiflcant digit/impulses orcarry-over impulses.

When su-fllcient impulses have been received from cam A, relay C9operates thereby causing the operation of relay RLS by the subsequentoperation of relay P. The operation of relay RLS releases relays C, P,PP and CI to C9 and causes the key release magnet KR of the keyset tooperate and release keys A and 5. The release of key A causes relay A torelease. The operation of relay RLS also causes the start relay ST torelease thereby removing ground from armature 55 of relay ST extendingby way of make contact and armature 54 of rela RLS to the winding ofrelay RLS thereby releasing relay RLS.

When, as the result or a carry-over operation, the indicator TTH hasbeen advanced from position 9 to its blank position with its contactelement 81 disengaged from contact 85 and brought into engagement withcontact 88, a circuit is closed from battery at contacts of cam E of theimpulse machine by way of conductor I8, resistance 89, conductor I I2,break contact and armature SI of relay WOI, conductor 8 of cable 39,contacts 88 and 81 of indicator TTH, winding of indicator TTH and thenceto ground, thereby causing indicator TTH to be stepped ahead from itsblank position to position 0, and

contact 81 to be disengaged from contact 88 and brought into engagementwith contact, 86.

An error key ER is provided to enable the operator to release any of theselection and price keys of the keyset which may have been depressed inerror, provided the error is discovered prior to the operation of thestart relay SR. When the error key is operated, a circuit is completedfrom ground at switch I8, break contact and annature I3 of relay S03,break contact and armatures of relays S02, Pl, P2 and P3 in series.conductor l4, contacts of error key ER, conductor 92, break contact andarmature 93 of relay SR, conductor 53, winding of relay RLS and thenceto battery, thereby causing relay RLS to operate and at its armature l9apply ground to conductor 58 thereby operating the key release magnet KRof the keyset. The operation of the key release magnet causes theselection and price keys to release. The release of key ER releasesrelay RLS and the key release magnet thereby restoring the keyset tonormal. The error key is rendered ineffective during the time a selectedregister recorder is being actuated to a new setting by interrupting thecircuit from the winding of relay RLS to the contacts of the error keyat armature 93 and break contact of relay SR.

Description of the wipe-out feature operatedthereby causing relay A tooperate and select the indicators A for the wipe-out operation, the keyWO applying ground to conductor I8 and causing the operation of thestart relay SR which locks under control of relay RLS. The operation orkey W0 also :applies ground by way of conductor 93 to the winding ofrelay WOI thereby causing relay WOI to operate and lock' by way 01' itsarmature -94 and make contact thereoifl'conductor 98 to ground at thebreak contact and armature I9 01' relayRLSJ-I'he operation of relay SRat its armature: 2 I appliesbattery to cam contacts A-and B' -the'rebycausing relays C and P to operate and:set'the counting chain intooperation.:-? The operation of relay PP at armature 32 thereoi' appliesground byway of conductor 33 toarmatures 'BS, Hand '98 of of relay W0,the circuit at armature '98 of relay WOI being continued by way of itsmake contact and conductor- 35, resistance 31 to themake contacts ofrelay REPas'sociated with armature 38 thereof. When relayREP operatesinresponse to the closure of cam contacts B, the cir-.

conductor 4 of cable 39, armature II and contact 12 of relay A, switchcontacts I3 and I4 and winding of indicator H and thence to groundthereby operating indicator H as relay REP operates in response to theclosure of the impulse contacts B. The operation of relay REP alsocompletes a circuit from battery at armature 98 and make contact ofrelay WOI, conductor I04, resistance IOI, make contact and armature I05of relay REP, conductor I of cable 39, armature 84- and contact 85 ofrelay A, contacts 86 and 81 and winding of indicator TTH to ground,thereby operating indicator TTH. The indicators TTH, H and U' thusreceive an operating impulse each time relay REP operates in response toclosure of the cam contacts B until suificient impulses have beenreceived to advance these indicators to their blank positions at whichtime the switching elements 81, 14 and 43 are moved out of engagementwith contacts 86, 13 and 42 and into engagement with contacts 88, 15 and51 respectively.

The operation of relay WOI at its armature 58 removes battery fromconductor 59 extending to contacts C and E of the impulse machine and atits armature I06 applies ground by way of conductor 3' of cable 39, makecontact and armature I01 of relay A,'contacts I8 and I1 and winding ofindicator unit TH, resistance 11, cam contacts F and thence to battery.A circuit is also closed from ground at make contact and armature I08of. relay WOI, conductor 6 of cable 39, make contact and armature I09 ofrelay A, conductor 85, contacts 64 and 63 and winding of indicatorT,'conductor 62, resistance 6|. cam contacts D and thence to battery.The operation of cam contacts D and F as the impulse machine continuesits operation, causes the indicators T and TH to be advanced to theirblank position'with their contact elements 63 and I1 moved out ofengagement with contacts 64 and I8 and brought into engagement withcontacts 66 and 8| respectively. When sufilcient impulses have beenreceived from the impulse cam A, relay C9 operates thereby causing theoperation of relay RIB. As armature I9 of relay RLS moves away from itsbreak contact,- ground is removed from armature I! of relay SR andarmature 94 01' relay WOI, thereby causing relays SRand WOI to release.The operation of relay RLS also causes, the key release magnet KR tooperate thereby releasing the selection key,A

andre'moving battery from the winding of relay A which releases andcompletes a circuit from ground at the winding of indicator U, switchcontacts 43 and 57 thereof, armature I08 and break contact 0! relay A,conductor III. winding of relay '1, conductor 62, resistance 8|,extending to impulse cam contacts C and D and thence to battery. Theimpulse machine at the contactsof cam C applies battery to indicators Tand U in series causing these indicators to be advancedto their positionand the switching elements 63 and 43 thereof to be disengaged fromcontacts 68 and" and brought into engagement with contacts 84 and 42respectively.

In a similar manner a circuit is completed from ground through thewinding of indicator H and switch contacts I4 and I5 thereof, conductor19, armature 82 and break contact of relay A, winding of indicator TH,resistance 11 to battery at the contacts of cam E 01' the impulsemachine. The operation of the impulse machine causes battery to beapplied to the windings of indicators TH and H in series advancing themfrom their positions blank to positions 0 with the switch elements 11and I4 disengaged from contacts 8| and I5 and brought into engagementwith contacts I8 and I9 respectively. Indicator TTH is advanced from itsposition blank to position 0 over the following circuit. Ground,

winding of indicator TTH, contacts 8'! and 88.

thereof, conductor 8 of cable 39, armature II and break contacts ofrelay WOI, conductor H2.

resistance 89 to battery at the contacts of cam E of the impulsemachine. With indicator 'I'IH in its position 0, the switch element 81is disengaged from contact 88 and brought into engagement with contact88. The number previously posted on indicator A has now been canceledand the wipe-out operation is completed, the indicator now being set toits normal or zero position. 'It will readily be understood that each 01the remaining indicators B to J may be restored to its zero setting in asimilar manner by merely operating the appropriate selection key and thekey WO of the keyset.

Description of keyset strip II'I comprising the selection signal lamps Ato J. The strips of keys H8 and H9 are also attached to thepanel H6,each of the strips comprising ten keys designated A to J and PA to PJfor selecting the indicator recorders and causing the recorders to printthe numbers registered thereon respectively. A numerical key strip I20comprising the digit keys I to 9 is also mounted on the keyset panel H6and is employed to control the receiving apparatus of Fig. 2 inaccordance with the numerical value of the digit key depressed. Thekeyset also comprises the keys ADD, W0 and ER and the release lamp RL.

Each of the keys comprising the key strips H8, H9 and I20 is normallyheld in a raised position by the spring I2I, Fig. 4, having one endthereof in engagement with the bearing plate I22 secured to the framemembers I23 supported by the panel H6. The upper end of the spring I22rests against a washer I24 held in position by the pin I25 passingthrough the key.

A locking member I26 is slidably mounted on the frame members I23 and isprovided with a plurality of apertures I21 through which the keysextend. A spring I28 normally urges the locking member I26 against thekeys. Each key is provided wltha notched portion I29 adapted to beengaged by the locking member I21 when the key is depressed. One lockingmember I21 is provided for each of the strips of keys H6, H and I20. Anelectro-magnet KR comprising an armature I3I pivoted at I32 is providedfor actuating the locking elements I26 when the magnet is energizedthereby releasing the operated keys of key strips H8, H0 and I20. Whenthe key release magnet KR is deenergized the armature I33 thereof isrestored to its unop ated position by the retractlle spring I33.

Two studs I34 are secured to the casing I I3 and provided with shouldersthereon against which the armature I3I normally rests. The studs areprovided with pins I35 passing therethrough and washers I36 formaintaining one end of the spring II 3 in position whereby the spring 3holds the armature I3I against the shoulders of the studs I34 with themagnet KR deenergized. ,Each key is provided with an insulated end I31for causing the contact springs I36 and I39 to be brought intoengagement with each other when the key is operated and thus set upcircuits for controlling the operation of the system. A cable MI isprovided for connecting the keyset to the associated equipment, thecable having a sufficient number of electrical conductors therein toestablish the electrical connections to the keyset.

Description of the printing feature The numbers posted by the registerrecorder devices A to J of Fig. 2 are automatically recorded at periodicintervals controlled by the timing mechanism of Fig. l and the releasedcondition of the register control apparatus of Fig. 2. The manner inwhich this is accomplished will now be described. The cams 4, and 6 ofFig. 1, it will be recalled, are connected by means of gears within agearbox 3 tov rotate at different rates of speed. A source of power suchas a clock mechanism, electric motor or other constant speed deviceconnected to the gear box by the shaft 2 maintains the cams 4, 5, and 6in operation at their respective speeds. Each cam is provided with alobe I42 adapted to engage the spring contact I43 as the cam rotatesthereby deflecting the spring contact I43 in a direction away from thegrounded contact I44. As the cam continues its rotation, the lobe I42 ismoved out of engagement with spring contact I43 thereby causing thecontact I43 to be released and swing into engagement with groundedcontact I44. When this occurs in the case of cam 4, for example, groundis applied by way of conductor I40 to the winding of relay P3 and thenceto battery causing relay P3 to operate and lock by way of its makecontact and armature I45, conductor I46, armature I41 and break contactof relay S03 to ground. The operation of relay P3 at its annature I3removes ground from the contacts of keys ER, W0 and ADD of the keysetthereby rendering these keys ineffective to initiate a change in thesettings of the register recorders A to J until relay P3 releases. Theoperation'of relay P3 at armature I41 thereof applies ground by way ofconductor I48 to the signal device I49, illustrated as an electric bellon Fig. 1,- and thence to battery thereby causing the signal device tooperate as an indication to the operator that an automatic printingoperation is about to occur and the keys ER, W0 and ADD of the keysetare at this time rendered ineffective.

The operation of relay P3 at its armature I5I applies ground to thewinding of relay S03 from whence the circuit is continued by way ofconductor I52 to the break contact associated with armature 2I of relaySR. When relay SR releases, battery at armatur 2I thereof is applied byway of its break contact to conductor I52 thereby causing relay S03 tooperate. Relay SR is slow to release and relay S03 is sufliciently slowto operate to prevent the operation of relay S03 until all carry-overoperations of a previously selected indicator register have beencompleted.

The operation of relay S03 at armature I53 thereof applies battery tojack I54 of the Jack strip 9 and thence by way of plug I55 insertedtherein, flexible conductor I56, terminal I51 of terminal strip II,contacts I58 and I59 of key PA, conductor I of cable I6I,. winding ofprint magnet PMA of the register recorder A and thence to ground therebycausing the print magnet PMA to operate and record the number posted onthe indicator register A. If it be assumed that the plug I62 is insertedinto another of the jacks I54, the operation of relay S03 applies groundby way of plug I62, flexible conductor I63, terminal I64 of the terminalstrip II, contacts I65 and I66 of key PC, conductor 2 of cable I6I andthence to the print magnet PMB associated with the register recorder Bthereby operating the print magnet PMB and causing the setting of theregister B to be recorded.

The operation of relayS03 at its armature I41 removes ground fromconductor I46 thereby causing relay P3 to release and remove ground fromconductor I48 thus interrupting the operation of the signal device I49.The release of relay P3 at armature I3 thereof closes in part a circuitto the contacts of keys ER, W0 and ADD. The release of relay P3 atarmature I5I thereof removes ground from the winding of relay S03thereby causing relay S03 to release and at armature I53 thereof removebattery from the windings of the print magnets PMA and PMB causing theprint magnets to release and feed the associated paper strips ahead todisplay the numbers printed thereon by the joint operation of theirrespective print magnets and the settings of the associated typewheelsof the respective indicators. The release of relay S03 at armature I3thereof applies ground to the contacts of keys ER, W0 and ADD therebyrendering the keyset efiective to control the operation of the registerrecorders A to J to new settings. 'Th operation of relays P2 and S02under control of cam 5 and the relaySR, and the operation of relay PIand SOI under control of cam 6 and relay SRis similar to ,the operationof relays P3 and S03 and for this reason will not be described indetail. Relays SOI, S02 and S03 are slow operating relays, relay SOI,when operated, applying battery to jacks I61 and relay S02 applyingbattery to jacks I68.

If it be assumed that the plugs associated with conductors 3, 4 and 5 ofcable I6I extending to the print magnet of indicator registers C, D andE are inserted into the jacks I68, the operation of relay S02 causes thenumbers set up on the indicator registers C, D and E to besimultaneously recorded by the operation of the associated printmagnets. In a similar manner, if

the Jacks associated with conductors 8 .to III of cable I are insertedinto the Jacks I81, the

operation of relay SOI causes the numbers set up on the indicatorrecorders G, H, I, J and K to be recorded as relay SDI operatesinresponse to the closure of the snap contacts of cam 8.

'rhe flexible conductors connected'to the terminals of terminal strip lI are of sumcient length such that any of the plugs thereof may bemserted into the lacks in, I88 or its whereby the indicators A to J maybe arranged indifferent groups in accordance with the desired frequencyor recordation of the information posted by the recorder registers.

in addition tothe automatic recording feature Just described, a group orkeysdesignated PA to .w is provided whereby the operator, by merelydepressing the appropriate printing key may cause the associatedregister recorder to print the number posted thereon. With this arrange-'ment the. operator may, if desired, obtain a printed record of eachnumber posted by the register indicators. 9

Assume, for example, that the operator desires to record the number justposted by the indicator register A. The completion of the postingoperation isdndicated by the extinguishment of lamps RL and A of theoperator's keyset. The operator merely depresses key PA thereby movingspring I59 thereof out of engagement'with contact I58 and intoengagement with contact I89. As spring I59 of the key PA is disengagedfrom contact I58, the winding of print magnet Description of theindicator recorder Referring now to Figs. to 9 of the drawings, there isshown thereon in detail, one of the indicator registers of Fig. 2comprising five indicators for displaying the ten-thousandths,thousandths, hundreds, tens and units digits respectively of the numberto be posted and recorded,

disposed in single alignment within a casing having a paper web I12issuing therefrom upon which are printed numbers corresponding to thesettings of the indicators at predetermined intervals of time. Eachindicator unit comprises a frame I18 having an electro-magnet I14secured thereto by the screw I15. An armature I18 pivoted at I11 is heldagainst the backstop I18 by the retractile spring I19 secured to thearmature and to the adjustable member I8I. A pawl I82 is pivotallymounted on the armature at I89 and adapted to engage the ratchet wheelI84 by the action of the retractile spring as the armature releases. Theratchet wheel I84 is provided with eleven teeth corresponding in numberto the number of positions or settings of the display and printingelements of the unit. The ratchet wheel I84 is attached to a shaft I85having secured thereto the indicating drum I86 and a typewheel I81. Thedrum and typewheel are both provided with the characters 0, 1 to 9 and ablank space intermediate the digits 9 and 0 such that, for eachcharacter displayed by the indicating drum, a corresponding character ofthe typewheel is in the printing position, the two series, of charactersbeing shifted with respectto each other by an angle of 90 degrees, Theframe I18 is provided with an aperture I88 in the front end thereofthrough which the selected digits on the indicating drum are selectivelydisplayed. A: mask I89 is fitted to the 0 front of the unit and providedwith an aperture I9I somewhat less in size than the aperture I88 fordisplaying the. selected digit. The aperture I88 also provides aclearance for the typewheel I91 whereby thetypewheel may be set todifferent settings without obstruction of the movement thereof by theframe I13.

I A Jockey wheel I95 is secured to the shaft I85 and cooperates with thejockey spring I98 to assist in operating the indicating drum andtypewheel and'maintaining the drum and typewheel positively positionedin any of their selected positions. A- cam element I91 of Bakelit orother insulating material is secured to the-shaft I85 and adapted tomove the contact spring I98 out of engagement with the contact springI99 and into engagement with contact-spring 20I as the indicator movesinto its blank position. As the indicator moves from its position blankto position 0, the contact spring I88 is disengaged from contact 20I andbrought into engagement with contact I99. The contacts I98, I99 and NIare electrically insulated from each other by suitable strips ofinsulation and. held securely in position by the crews 202 and nuts 203thereby clamping the spring assembly, the Jockey spring and the backstopI18 to the member 204 secured to the frame I13 of the unit.

Four plugs 205 are provided at the rear of the unit and insulatedtherefrom by the insulators 208, the plug being securely held by thenuts 201 and washers 208. A terminal connection 209 is assembled beneatheach of the nuts to which are attached the wires 2 extending to theelectro-magnet I14 and the contact springs I98, I99 and 20I. The plugs205' are engaged by the Jack springs 2I0 with the unit in the positionshown on the drawings, thereby providing an arrangement whereby the unitmay be readily inserted into the casing and quickly withdrawn therefromfor inspection, if desired.

The casing hereinbefore referred to comprises a lower portion 2I2, afront portion 2I3, end portions 2|4, a rear portion 2I5, and a topportion2I8. A front panel section 2I1 is secured to the front portion ofthe casing 2I3 by the hinge 2I8 whereby the panel 2I1 may be pivotedabout the hinge to the position indicated in dashed outline on Fig. 6 ofthe drawings by the numerals 2I9, in which position the indicators maybe readily removed from the casing. A moulding 22I is secured to thepanel 2I1 and provided with a spring 222 having an aperture 223 thereinfor engaging the pin 224 secured to the casing 2 thereby providing meansfor maintaining the panel 2I1 in the closed position shown on Fig. 5 ofthe drawings whereby the panel may be readily lowered by disengaging thespring from the pin 224.

With the panel 2I1 in closed position the indicator units are securelyheld in their operative position within the casing. The panel isprovided with apertures 225 through which the settings of the indicatorsare displayed. A cardholder or designation strip 228 is provided for umounting a card or ticket 221 bearing a designation such, for example,as the letter A representative of the type or class of informationposted and printed by the device.

A plurality of supports 228 having projecting portions 229 thereon aresecured to the upp part of the casing M6 by the screws 23! therebyproviding channel sections within which the indicators are disposed.Suitable strips 232 of insulating material are secured to the supports228 thereby providing a structure wherein the indicators are detachablymounted and insulated from each other and from the supports. With theindicator fully inserted within the channel section, the head of thescrew I is brought into engagement with the rear portion 2I6 of thecasing which may be made of wood,

Bakelite, rubber or any other suitable non-conducting material. Ifconducting material is employed the insulation 232 may be extendedbetween the screw I15 and the portion 2I5 to maintain the insulatedrelationship between the respective units.

Referring now specifically to Figs. 6 and '1 of the drawings, there isshown thereon a printing magnet PM supported by the bracket 233 securedto the ends 2 of the casing by suitable screws. An armature 234 pivotedat the bearings 235 is normally held against the stops 236 by theretractile spring 231 having one end thereof secured to the member 238'.A pawl 236 is pivotally mounted on the armature at 24l and urged againstthe ratchet wheel 242 by the spring 243 secured to the pawl and to thearmature at 244. The armature is provided with a printing bar 245extending beneath the type wheel I81 A wing nut 215 is threaded upon astud 216 secured to the casing 2 I5 and having a washer 211 intermediatethe wing nut and the upper end of the hinged section 212 whereby thesection 212 is maintained in closed position at all times except when itbecomes necessary to replenish tery is applied to the conductor 218 bythe timing device of Fig. 1 or by a print'key of the operators keyset,as the case may be, the print magnet operates and attracts its armature234 thereby causing the print bar 245 to be operated to the positionindicated by dashed outline on Fig. 6 of the drawings and print a.number on the paper web I12 corresponding to the number displayed at thetime by the indicator units. As battery is removed from conductor 218the print magnet releases thereby causing the armature 234 to be movedagainst the backstop 236 by the spring 231, the pawl 238thereof engagingthe ratchet wheel 242 and advancing the paper feed roller and the paperweb sufilciently to cause the number just printed thereon to be broughtinto view substantially in the position illustrated for the number 15623of Fig. 5.

It will be understood that the number 15623 shown on Fig. 5 is thenumber last printed by the device, the printing operation havingoccurred at a time when th indicator units assoand adapted to cause thesettings of the indicators to be recorded as the armature 234 isoperated by the print magnet PM.

The ratchet wheel 242 is connected to the paper feed roller 246 by theshaft 241 mounted on the bearing supports 248. A ratchet spring 248supported by the bracket 25I is adapted to engage the ratchetwheel inany of the set positions of the feed roller 246. The paper feed rolleris provided with a plurality of pins 252 for engaging the perforations253 of the paper web I12 issuing from a roll 255 supported on a'shaft256 rotatably mounted on the bearing supports 251 secured to the lowerportion 2l2 of the casing. The paper web passes over a roller 256supported at 259 by the brackets 26I secured to the portions 2I4 of thecasing. The paper also passes over a paper guide strip 262 secured tothe casing 2l3 and thence past a cutout portion 263 of the casing 2I3where it is engaged by the pins 252 of the feed roller, the paper webthereafter passing through slots 265 in the front portion of the casing2I3. An inked ribbon 266 carried by the spools 261 passes between thetypewheel' of each indicator unit and the printing bar 245, the ribbonwheels 261 being arranged to advance the inked ribbon as the printingmechanism operates as is well known in the printing telegraph art. Thespring clips 268 are provided to maintain the inked ribbon in a tautcondition. The ribbon spools are mounted on shafts 269 carried by thebearing supports 21I secured to the end portions 2I4 o" the casing.

A hinged section 212 at the rear of the casing is mounted by the hinge213 and provided with a knob 214 attached thereto whereby the section212 may be opened to provide for the replenishment of the paper roll 255and facilitate threading the paper over the roller 258 and thence intoengagement with the feed roller.

responding to numerical signals subsequently received by the device.

While the invention has been described in detail with respect to acertain preferred example thereof which gives satisfactory results, itwill be understood by those skilled in the art to which the inventionpertains, after understanding the invention, that various modificationsand changes may be made without departing from the spirit and scope ofthe invention and it is intended, therefore, in the appended claims tocover all such changes and modifications.

What isclaimed as new and desired to be secured by Letters Patent of theUnited States is:

1. In a system of the character disclosed, means for generating andtransmitting signals including selection signals, numerical signals anda start signal, receiving means comprising a plurality ofelectro-responsive indicators, means controlled by said selectionsignals for selecting one of said indicators for operation, a countingchain of relays, a first impulse generating means, means including astart relay controlled by said start signal for rendering said firstimpulse gencrating means effective to actuate the counting chain ofrelays through a cycle of operations thereof, a second impulsegenerating means operating in timed relation with said first impulsegenerating means for generating indicator operating impulses, and meanscontrolled jointly by said counting chain of relays and said secondimpulse generating means for causing the selected indicator to post thearithmetical sum of the number previously posted by the device and thenumber represented by the numerical signals received by said receivingmeans.

2. In a numerical posting system, means for transmitting signalsrepresentative of a number,

receiving means including an electro-responsive posting device which isselectively settable to, a plurality oi diilerent positions respectivelyfor posting the digits of a number and settable to a non-postingposition, means responsive to said signals for generating a series ofactuating impulses representative of said number transmitted and forgenerating additional actuating impulses interspersed with certain ofthe impulses oi said series, and means including circuit connections andswitching means therefor operative in accordance with the position ofsaid posting device during actuation thereof for causing said postingdevice to be actuated jointly by said series oi actuating impulses andsaid additional interspersed actuating impulses to cause the postingdevice automatically to be actuated P st said nonposting position whenit has reached such position, and post a number different from thenumber previously posted by said device by an amount corresponding tothe number transmitted by said signals.

3. In a numerical posting system, means for transmitting signalsrepresentative of a number, receiving means including a plurality ofassociated electro-responsive posting devices each of which devices isselectively settable to a plurality of different positions respectivelyfor posting the digits of a number and each settable to a nonpostingposition, the devices collectively posting a desired number, meansresponsive to said signals for generating a series 01' actuatingimpulses representative oi said number transmitted and for generatingadditional actuating impulses interspersed with certain oi the impulsesof said series, and means including circuit connections and switchingmean therefor operative in accordance with the position of said postingdevice during actuation thereof ior causing said posting devices to beactuated jointly by 'said series or actuating impulses and saidadditional interspersed actuating impulses for causing the postingdevices automatically to be actuated past said non-posting positionswhen they have reached such positions, and post a number difl'erent fromthe number previously posted by said devices by an amount correspondingto the number transmitted by said signals.

4. In a numerical posting system, means for transmitting signalsrepresentative or a number,

receiving means including a group oi associated eismelectro-responsiveindicators each oi which is selectively settable to a plurality ofdifferent positions respectively for displaying the digits 1 to 9 and 0of a number and each settable to a blank position, the indicatorscollectively displaying a desired number, means responsive to saidsignals for generating a series of indicator actuatingimpulsesrepresentative of said number transmitted and tor generatingadditional indicator actuating impulses interspersed with certain -ofthe impulses or said series, and means including circuit connections andswitching means therefor operative in accordance with the position ofsaid posting device during actuation thereof for causing said indicatorsto be actuated Jointly by said series of actuating impulses and saidadditional interspersed actuating impulses to cause the indicatorsautomatically to be actuated past said blank positions when they havereached such positions, and post a number difl'erent from the numberpreviously posted by said indicators by an amount corresponding to thenumber transmitted by said signals.

5. In a numerical posting system, means for transmitting signalsrepresentative of a number, receiving means including a group ofassociated electro-responsive indicators each 01' which is selectivelysettable to a plurality of diflerent positions respectively fordisplaying the digits 1 to 9 and 0 of a number and each settable to ablank position, the indicators collectively displaying a desired number,means responsive to said signals for generating a series of indicatoractuating impulses representative of said number transmitted and forgenerating additional indicator actuating impulses interspersed withcertain of the impulses of said series, and means including circuitconnections and switching means therefor actuated by said indicators forcausing said indicators to be actuated jointly by said series ofactuating impulses and said additional interspersed actuating impulsesto cause the indicators automatically to be actuated past said blankpositions when they have reached such positions, and post a numberdifferent from the number previously posted by said indicators by anamount corresponding to the number transmitted by said signals.

HAROLD F. MAY. GEORGE L. BUSH. ERNEST FRISCHKNECHT.

